Recovery of scandium and uranium

Details Recovery of scandium and uranium Recovery of scandium and uranium

1989-10-19

1990-11-06

Miller, Edward A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 20, 423 8, 423 11, 423 18, 423 215, 423DIG14, 210682, C01G 5700

Patent

active

049685040

ABSTRACT:
The separation of uranium, iron and scandium is achieved by the following process wherein a material containing these values is dissolved in mineral acid to form an aqueous solution, thereafter, an iminodiacetic acid cationic ion exchange resin is used to retain a major portion of the scandium and uranium. A raffinate containing the iron is formed. The ion exchange resin having said scandium and uranium retained thereon is rinsed with a dilute acid to remove residual metals other than scandium and uranium. The resin is eluted with an aqueous solution of an organic chelating acid to remove a major portion of the scandium from said resin and to form an aqueous solution containing scandium. The resin is then eluted with an aqueous solution of a mineral acid to remove a major portion of the uranium from the resin to form an aqueous solution containing the uranium. The scandium and uranium are recovered as solids.

REFERENCES:
patent: 4383104 (1983-07-01), Miyake et al.
patent: 4414183 (1983-11-01), Sasaki et al.
patent: 4576969 (1986-03-01), Echigo et al.
patent: 4624703 (1986-11-01), Vanderpool et al.
patent: 4626280 (1986-12-01), Vanderpool et al.
patent: 4718995 (1988-01-01), Vanderpool et al.
patent: 4718996 (1988-01-01), Vanderpool et al.
patent: 4751061 (1988-06-01), Kim et al.
patent: 4765909 (1988-08-01), Rourke et al.
patent: 4786481 (1988-11-01), Kataoka et al.
patent: 4797264 (1989-01-01), Inoue et al.
patent: 4808384 (1989-02-01), Vanderpool et al.
patent: 4816233 (1989-03-01), Rourke et al.
Ross, J. R., "Reconnaissance of Scandium Sources and Recovery of Scandium from Uranium Mill Solutions", Jan. 1962, Bur. of Mines, Utah.
Ross, J. R., "Recovery of Scandium from Uranium Plant Iron Sludge and from Woljramite Concentrates", May 1964, Bur. of Mines, Utah.

Affiliated with

Also associated with

Rating

Recovery of scandium and uranium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recovery of scandium and uranium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovery of scandium and uranium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1306004